Ok I was talking to a friend of mine the other day because im looking to get another 60, one that I can use for my hunting and banging around in the brush so I can restore my dads back to factory and refinish the stock so some day I may pass it down to my son. ANy way , I was talking to a buddy of mine about them and I mentioned some of the older 60s that had a 18 shot mag tube and he told me that the 60 was never made with a 18 shot tube. I could have sworn I have seen some with them but hes telling me its a aftermarket kit. If any one has any info on this I appreciate it. Also if I do happen to pick one up that does not have the 18 mag tube how difficult would it be to put one on and how would I go about it.